Sterilizer



FIG. 1 is a perspective view of a sterilizer showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawing views are included for the purpose of illustrating portions of the sterilizer that form no part of the claimed design. 

CLAIM The ornamental design for a sterilizer, as shown and described. 